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" 20.If "49x^(2)-b=(7x+(1)/(2))(7x-(1)/(...

" 20.If "49x^(2)-b=(7x+(1)/(2))(7x-(1)/(2))," then the value of "b" is "

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If f(x)=(x^(2)+3x+2)(x^(2)-7x+a) and g(x)=(x^(2)-x-12)(x^(2)+5x+b) , then the value of a and b , if (x+1)(x-4) is H.C.F. of f(x) and g(x) is

If f(x)=(x^(2)+3x+2)(x^(2)-7x+a) and g(x)=(x^(2)-x-12)(x^(2)+5x+b) , then the value of a and b , if (x+1)(x-4) is H.C.F. of f(x) and g(x) is

(x^(2)-1)/(x^(2)+7x+1)

(x^(2)-1)/(x^(2)+7x+1)

If (x^(2) - x - 1)^(x^(2) - 7x + 12) = 1 then

If (x^(2) - x - 1)^(x^(2) - 7x + 12) = 1 then

((x^(2) - 1))/((x^(2) + 7x+1))